It is alleged that Zakir Naik used his NGO for hawala operation; also, that he transferred crores from his overseas accounts using his sister and wife’s Indian accounts.

Naik started a firm to make software for hate speeches and used to sell them to Dubai-based company named Global Broadcasting Corporation, alleged his aides.

Naik turned an NRI in 2013 and transferred all the money to self and wife's account, alleged his aides.

NIA will attach Naik’s properties if he fails to turn up; he has been on the run since the Dhaka blasts.

An FIR against Naik and his associates was registered by the NIA in November last year.

The Centre had declared Islamic Research Foundation (IRF), an NGO based at Dongri in south Mumbai, an unlawful organisation under the UAPA. The Delhi High Court had recently upheld the decision to immediately ban IRF saying the organisation and its president and members were indulging in "unlawful activity".

Besides the IRF, Naik is also founding trustee of the IRF Educational Trust and the Islamic Dimensions Trust. The speeches of Naik are banned in the UK, Canada and Malaysia.

Naik has rejected all allegations of involvement in terror-related activities and opposed ban on the IRF.